Commentary The conviction of Harvard University professor Charles Lieber on fraud charges seems to have prompted more questions about how America should respond to non-traditional Chinese threats. While the Chinese regime presents an unparalleled breadth and depth of threats both traditional and non-traditional, America struggles to deal with them. How do we maintain our American system of openness and address an enemy that seeks to use that very openness against us? The Lieber case is instructive in how China operates and poses legal risks to Americans. Despite the journalistic and academic dramatic rhetoric to the contrary, the charges against Lieber were not about espionage or information that he may or may not have passed to Beijing. He was charged with much simpler crimes of lying on official funding documents and hiding income and assets received from work rendered for China. The specific points of the crimes seem well founded with …